[llvm] [bazel] Port f9cd2ee119ff6bd59f48fd71617dc4fc981083c9 (PR #158691)

[Keith Smiley via llvm-commits]

https://github.com/keith created https://github.com/llvm/llvm-project/pull/158691

None

>From 1011d78d3d3b765af76245c3d7928f35ee6cc5e7 Mon Sep 17 00:00:00 2001
From: Keith Smiley <keithbsmiley at gmail.com>
Date: Mon, 15 Sep 2025 17:25:47 +0000
Subject: [PATCH] [bazel] Port f9cd2ee119ff6bd59f48fd71617dc4fc981083c9

---
 utils/bazel/llvm_configs/llvm-config.h.cmake | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/utils/bazel/llvm_configs/llvm-config.h.cmake b/utils/bazel/llvm_configs/llvm-config.h.cmake
index 39136bc45c292..6488d6c01b5c6 100644
--- a/utils/bazel/llvm_configs/llvm-config.h.cmake
+++ b/utils/bazel/llvm_configs/llvm-config.h.cmake
@@ -146,4 +146,7 @@
    coverage bugs, and to 0 otherwise. */
 #cmakedefine01 LLVM_ENABLE_DEBUGLOC_TRACKING_ORIGIN
 
+/* Define to 1 to enable LLVM OnDisk Content Addressable Storage */
+#cmakedefine01 LLVM_ENABLE_ONDISK_CAS
+
 #endif